72514252801 has 2 divisors, whose sum is σ = 72514252802.
Its totient is φ = 72514252800.
The previous prime is 72514252739. The next prime is 72514252807. The reversal of 72514252801 is 10825241527.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 70108448400 + 2405804401 = 264780^2 + 49049^2
It is a cyclic number.
It is not a de Polignac number, because 72514252801 - 27 = 72514252673 is a prime.
It is not a weakly prime, because it can be changed into another prime (72514252807) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36257126400 + 36257126401.
It is an arithmetic number, because the mean of its divisors is an integer number (36257126401).
Almost surely, 272514252801 is an apocalyptic number.
It is an amenable number.
72514252801 is a deficient number, since it is larger than the sum of its proper divisors (1).
72514252801 is an equidigital number, since it uses as much as digits as its factorization.
72514252801 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 44800, while the sum is 37.
The spelling of 72514252801 in words is "seventy-two billion, five hundred fourteen million, two hundred fifty-two thousand, eight hundred one".